Heater



Nov. 4 1924.

C. E. CHAPMAN HEATER Original FiledMarch 23. 1920 2 Sheets-Sheet 1 C. E. CHAPMAN Nav. 4 1924.

HEATER Original Filed March 23.

1920 2 Sheets-Sheet 2 Patented Nov. 4, 1924,

srars PATENT QFFQE.

CHARLES CHAPMAN, OF FORT EDWARD, 'NEW YORK, ASSIGNOR OF ONE-HALF TO JOSEPHGOODFELLOW, OF FORT EDWARD- NEFF YORK.

HEATER.

Application led March 23, 1920, Serial No. 368,191. Renewed April 5, 1924.

To all whom t may concern.'

Be it known that I, CHARLES E. CHAPMAN, a citizen of the United States, residing at Fort Edward, in the county of Washington and StateJ of New York, have invented certain new and useful lmprovements in Heaters, of which the following is a specification.

This invention relates to a heater adapted for attachment tot internal combustion engines for the pur ose ofutilizing the exhaust heat from tie engine to vaporize the liquid particles in the fuel mixture from the carbureter and thus prevent condensation within the inlet manifold of the engine, while at the same time permitting the use of the present day lower grades of fuel oils without deleterious dilution of the crank case lubricant.

In detail, the invention consists of a unit heater feeding the inlet manifold from the carburetor through a group of ues or tubes around which the exhaust gases from the engine are circulated.

The invention has, as another object, the provision of a heater which is so arranged and constructed that a flame may be produced therein lfor the purpose of initially heating the heater to provide for easy starting of an internal combustion engine in cold weather.

Inthe drawings:

Figure 1 is a side elevation of the heater.

Figure 2 is a vertical section of the same,

Figure 3 is a section on the line 3-3 of Figure 1,

Figure 4 is a section on the line 4-4 of Figure 1,

Figure 5 is a perspective view of the deflector plate.

The invention, as herein shown, is combined with the inlet manifold 1 and the exhaust manifold 2. The inlet manifold is provided with an opening 3 having a flange 4 against which a flange 5 of the heater abuts and which flanges are held together by suitable bolts 6. The flange 5 is joined with a passa-ge 7 which enters a rect-angular chamber 8 having a suitable heat insulating cover 9 and which is confined between a top plate 10 and a header plate 11 by means of bolts 12, said bolts also extending through a flange 13 on the body 14 of the heater. The head plate 11 receives one end of a group of tubes 15, the other ends being received in a bot tom plate 16 which forms the upper wall of the chamber 17 having the absestos or other heat insulating cover 1S and which chamber 17 is heldin place by. suitable bolts 19 and nuts 20, as indicated. The chamber 17 is provided with an inlet iange 21 for bolt-ing to the carburetor. Secured to the forward side of the heater chamber 14 is a vertical riser 22 having an opening at 23 into the heater chamber and said riser is held in placeby a strap 24 secured by a bolt 25 in any suitable manner. The upper end of the riser 22 connects by means of a flexible tube 26 with the exhaust manifold 2, as shown. Within the heater chamber 14 and at one side, as clearly shown in Figure 4, is the angularly disposed deflector plate 27 having the opening 28 which is staggered with respect to an opening 29 connectin with an exhaust fiue 30 attached to the ex aust outlet 31 secured in place by suitable fastening means 32.

Within the heater chamber 14 and disposed around the tubes 15 at the bottom thereof is some loose asbestos filling, as indicated at 33, which, on initial starting of the engine, may be saturated with gasolene or the like and ignited for the purpose of heating the heater tubes to provide for easy starting in connection with priming', of the engine directly in the cylinder.

In the operation of the heater the carburetted air is received within the chainber 17 and passes upwardly through the heater tubes 15, into the chamber 8 and out into the inlet manifold 1. When the engine is functioning the exhaust gases pass from the flexible tube 26, down through the riser 22, through the opening 23 into the heater chamber 14, around the tubes thereinheating the same to a high degree and finally passing out the opening 28 in the deflector 29 and down through the ex haust flue 30. It will be seen that the course pursued by the incoming carburetted air is through a highly heated group of tubes.

It is to be understood that in carrying the invention into practice the heater may be combined with any of the present day type of carburetors and internal combustion engines as an attachment therefor and will increase the efiiciency of such devices very materially.

Attention is now directed to the fact that, as particularly shown in Figure 4, the rear side Wally and; one end Wall f the body of the. heater are integral and', s brought out in Figures 2 and 3, are permanently con'- neote-d to the plates ll and 16 the ends of the chamber. Similarly@ the front wall of the heater body and the other end Wall thereof are integral. However, the front Wall and said end Wall instead of beiner permanently secured in place, are' detachably held in position..` mating with the permanently mounted Walls of the body, by theA strap 2st. Accordingly, by' loosening the bolt to release the strap 2l, the front YWall of theheater body and the end Wal-l integral with said iront Wall may be displaced 4as u unit for exposing the tubes l5.

Thus, free access to said tubes throughout the length thereof may be had for cleaning` the tubes of soot or other incrustation thereon deposited by the exhaust gases flowing` around the tubes. As will be perceived7 the device may thus be maintained to function with maximum e-lciency.

'I claim: y

l. In a l'uel charge heater for internal eombus'ti'en engines, spaced plates,k agroup ot oharg'e conducting tubes extending between' said plates secured thereto, an exhaust ges eliamber lieusin-g the tubes" and including an integrall);7 formed back Wall and end Wall permanently secured to the pla-tes and a removable front Wall and integral opposite end Wall mating with said Erst mentioned ui'alls, and a str'psurroundng the chamber removably securing the front. wall and the latter end Wall in position whereby the front wall and' latter end Wall may be displacedfor Cleaning' the tubes.

lna fuel charge' heater for internal Combustion engines, a group of chargeconducting tubes, an exhaust gas chamber housing the tubes" and formed of companion seetions one permanently mounted and the other removable for cleaningl the tubes, and

fastening means encirolingthe chamber removably securing the latter section to mate with saidirst mentioned section.

In testimony whereof l allix my signature. .t A, CHARLES n. CHAPMAN. [L e] 

